Mordecai Oliver ( born October 22, 1819 Anderson County, Kentucky, † April 25, 1898 in Springfield, Missouri ) was an American politician. From 1853 to 1857 he represented the State of Missouri in the U.S. House of Representatives.
Mordecai Oliver was the father of Governor Willard Preble Hall. He attended the common schools. After a subsequent law degree in 1842 and its recent approval as a lawyer, he started in Richmond (Missouri ) to work in this profession. In 1845 he was attorney for the fifth judicial district of his state. At the same time he proposed as a member of the Whig Party launched a political career.
In the congressional elections of 1852, Oliver was the fourth electoral district of Missouri in the U.S. House of Representatives in Washington DC chosen, where he became the successor of Willard Hall on March 4, 1853. After a re-election as a candidate of the opposition party, he was able to complete in Congress until March 3, 1857 two legislative sessions. These were shaped by the events leading up to the Civil War.
In 1861 he was appointed as Unionist Secretary of State of Missouri. Subsequently, he was brigadier general in the Union Army during the Civil War. Otherwise, he practiced as a lawyer in St. Louis. Between 1889 and 1893 he was a criminal judge. He then moved to Springfield, where he died on 25 April 1898.